We know from experience - PTSD creates a whole new reality

“Unlike simple stress, trauma changes your view of your life and yourself. It shatters your most basic assumptions about yourself and your world — “Life is good,” “I’m safe,” “People are kind,” “I can trust others,” “The future is likely to be good” — and replaces them with feelings like “The world is dangerous,” “I can’t win,” “I can’t trust other people,” or “There’s no hope.”